Get url query string params in javascript

url_params.js

// using URLSearchParams
// https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams
let urlParams = new URLSearchParams(window.location.search);
let something = url_params.get('something');

// other way (also works with window.location.hash)
let urlParams = {};
window.location.search.substr(1).split('&').forEach((param) => {
  let x = param.split('='); 
  urlParams[x[0]] = x[1];
});
let something = urlParams.['something']; // or urlParams.something